If you don't have any programming knowledge, you probably shouldn't do it because you would be risking people funds. I couldn't find any guides but there is Electrum dash, ltc, verge, bch I believe so If your coin is foroked from any of these, you should check the source code, that should give you an idea on where to start.
i have Good and Crazy Programmer for blockchain and we will create false coin and we will try on false blockchain if everything is ok we will make it on our coin .. but the big problem that we not find any guides for this
Electrum Dash , Cash , ltc , verge , and other we downloaded and try to ( KNOW HOW ) can edit or clone but each wallet have Different version so we can't know where is the new and where is the old
Electrum Document it talk general about the wallet and not talk about how to fork it